Stylus-holder for talking-machines.



0. 0. DE SELMS.

STYLUS HOLDER FOR TALKING MACHINES.

APPLICATION FILED AuG.1.191s.

Lgggfim Patented Apr. 17, 1917 I QM? @Zmw gwrm a a e \Ll .lb ii...

Application filed august 1 0 art whom it may comer.

Be it known that l, Grier. C. DE Snail rs,

a citizen of the United States, residing at Attica, in the county of Fountain and State of Indiana, have invented certain new and useful Improvements in Stylus-Holders for.

This invention relates to improvements in talking-machines using records in the shape of flat disks with a continuous spiral groove in its outer face which receives the sound- Wave producing surface irregularities to be contacted by a stylus. Som talking-machine manufacturers and reco arr-alters so construct the arts as to contact the stylus with the bottom the spiral groove ofthe record disk, on which bottom the soundproducing irregularities of surface are formed, while other manufacturers of talking-machines place the soundproducing i regularites on the sides of the groove with a cor resnonding structural change in the stylus-- holding mechanism. The result is the two forms of records cannot be played l1 terehangcably on the two styles of stylus-hclding machines.

The object oi this invention is to provide an attachment for the stylus-holders of those machines which are built to reproduce sounds by contacting the stylus with the side of the groove, whereby the stylus may be held in contact with the bottom of the groove, instead of its side, when it is desired to play records having the sound-producing irregula ities on the groove-bottoms.

The object is to provide a simple and inexpensive attachment which may be readily attached to and removed from talking machines now in common use, by inexperienced persons, and both styles of record played at will,

l accomplish the above, and other objects which will hereinafter anpear, by the mechanism illustrated in the accompanying drawings, in which-- Figure l is a view in front elevation of a talking-machine diaphragm and stylus embodying my invention. Fig. 2 is a view in side. elevation of same. Fig. 8 side elevation of my attachment on a somewhat larger scale, showing the stylus-holder of the original machine in vertical section. Fig. 4 is a perspective view of the attachment alone. Fig. 5 is a view similar to that is a view in "4', 1916. Serial lilo; 113,679.

of Fig. 52, of a modified form wherein my in vention is an integral portion oi the other stylus-holder, and Figs. 6 and 'Z', are modifications wherein my attachment is formed with a spring-clamp to embrace the stylusholder of the original machine to which it is to be secured. 8 is a modification showing the slotted end of my attachment adjustable to stylus sockets oi different sizes.

Like characters of reference indicate like parts throughout the several views of the drawings,

The disk 9, frame 10-, stylu holder 11 and connection 12, between the latter and the dish are of common form and of. the type to hold the stylus, placed in the holder 11, against the side oi the groove of the dish My invention consists essentially in errtending anarm laterally of the stylus-holder 11 to form a bent-lever connection, as a Wlliufi, with the dish 9, whereby vibrations will be imparted to the disk cm 'a stylus held at the end of arm agaios; the bottom of the groove in the record. as is shown in Fig. 2. This armextension l4 an end bent at right angles and biiiurca ed to form pair of prongs 15 which receive tl screw of stylus-holder Ill between The arm also has a tired oin 16 W1 the socket in the end or? it, where is re tained by tightening the set-screw, and at the opposite end. of the arm from prongs is hole 17, where the stylus 18, ct usual construction, is secured.

its the diameter oi": the holder 11 varies in different machines the prongs 15 may be bent toward the pin 16 or from it to suit the conditions, or the prongs may be in a sepa rate plate as shown in Fig. 8, adjustably secured to the body of the arm by set-screws 1. llhe combination, with the stylusholder of a talking-machine having a stylus receiving socket, of a removable arm extend-- ing laterally thereof, and means for securing the arm to said holder comprising a pin fixed in the arm and entering the stylusscclret in the stylus-holder, said arm having:

means remote from said pin forholding a stylus and meansindependent of the pin to I keep the arm from swinging about the pin.

2. The combination, with the stylus- "holder of a" talking-machine having a stylus-receiving socket and a set screw, of a removable arm extending laterally of the stylus-holder, a fixed pin in the arm entering the stylus-socket where it is secured by 10 said set-screw, the adjacent end of the arm OMAR 0. DE SELMS. Lie 

